Adjustable Tire Deflator Auto-Stop (10-40 PSI) Offroad Accessories

Works perfectly! The numbers are easy to read and the adjustments are super quick. The orange color is great for finding them, the size is perfect to keep in your glove box and make it easy to take anywhere you go. They’ve stood up incredibly well being used so regularly and would absolutely say they’re worth the money.

Works great. Helps with timing

These were spot on. Out of 4 tires, all these set as close as I could get them, 2 of the tires were off by 1 PSI....very accurate.

I’ll preface this by saying that I bought these deflators to streamline part of my job - I process new cars at my dealership, and part of that is deflating tires to the specified pressure per car. These cars arrive with 45-60psi in the tires. Most of these types of deflators max out at 30psi, but the Dornatas max showing 40psi make them ideal. Almost all of the cars I do need tires set to 36psi, 35psi, 34psi, or 29psi - so my intention was to use the set of 4 individually, preset to these pressures. I can then get one tire going, work on another task, switch the deflator to the next tire, so on. But in my few days of using these, I’ve found that I can get 1 to 2 tires done before the cooling effect of the air decompressing through the deflator has raised its valve-closing pressure above what I have it set to. Last week, they worked pretty well, only minor adjustments on the last tire or two per car when checking with a gauge. Today, it’s around freezing outside and wheels/tires/air in them is cold - I can get 1 tire done and by the next, my 36psi-set deflator gives up at 45psi or won’t open at all, and needs to be warmed up before it functions correctly again. Once warm, it’s pretty accurate! Maybe these will work right in higher temperatures, but they’re not ideal for repeated use in cold conditions. Unfortunate!

Got these because I work at a dealership and do pre delivery vehicle inspections. They all come off the transport vehicles at 45psi plus. Only brand that goes higher than 30 psi. It takes a few tries to understand how to read the measurements but once I figured it out, they’ve been accurate and makes it so that I don’t have to take out my tire pressure air tool to het them to the right psi. I leave it locked at 35psi and never have to mess with it and it’s been accurate with every car so far.

Works adequately but rather difficult to start the threads on the valve stems. Just 1/8" to 3/16" of unthreaded leader would help initial alignment enormously. So there's better options available. If you can, get the excellent "down-under" brand instead, worth every penny.

The air pressure reading after airing down is very accurate and it's perfect if you need to air down to 36 PSI. Most others on the market can only air down from 30-10 PSI. So glad I found this deflator rather than being stuck with the one that requires removing the valve stem to air down, which means I have to deflate one tire at a time. With this deflator, all I have to do is screw it into the tire valve stem, pull out the tab, and move on to the next tire while it deflates. Once I finish installing them on all four tires, all I have to do is go back to the first tire to remove the deflator one at a time. Done in less than five minutes.

It works. My gauge was 39.5. It was set for 40. That’s pretty dang good! I’d buy again

Nice

A little hard to adjust to the right pressure but other than that, they were great